Systemair
Systemair Topvex SX heat recovery ventilation unit
Rotary heat exchanger AHU for large commercial buildings.
Price on request
Final price depends on installation scope
- Suitable area: 500–8000 m³/h
- Heat exchanger: Rotary heat exchanger (rotor)
✓ Sales and installation across Estonia
Topvex SX description
Systemair Topvex SX is a heat-recovery ventilation unit (HRV) that continuously supplies fresh air throughout the building while recovering heat from the exhaust air. Systemair is a Swedish manufacturer known for its strong commercial product line and rotary heat exchangers. The Topvex SX model is designed specifically for large offices, schools, apartment blocks and commercial buildings, where both energy savings and quiet operation matter.
How Systemair Topvex SX works
The unit draws fresh air from outside while simultaneously extracting stale air from the rooms. A rotary heat exchanger (rotor) transfers heat from the exhaust air to the incoming fresh air without the two streams mixing. The result is fresh, filtered supply air that in winter arrives at almost room temperature. This significantly reduces heating costs — often 30–50% compared to natural ventilation. The Topvex SX covers airflows of 500–8000 m³/h. The rotary exchanger recovers both heat and moisture.
Energy efficiency and indoor climate
Systemair Topvex SX suits objects of 500–8000 m³/h and is designed to deliver the highest possible heat recovery. Supply air is filtered — typically with an F7 or better filter — which stops pollen, dust and fine particles (PM2.5). It is especially valued by allergy sufferers and families with young children. Filtered air keeps indoor CO₂ levels low, reduces moisture in bathrooms and kitchens, and prevents mould.
Control and automation
Supports BACnet, Modbus and LonWorks protocols. This means the unit runs only as much as needed — saving electricity and extending filter life.
Why choose Systemair Topvex SX
Systemair is well known on the Estonian market for quality, durability and long-term spare-parts availability. Topvex SX is a popular choice thanks to its strong price-to-performance ratio and easy maintenance. We sell the unit together with professional installation across Estonia, including design, ductwork, commissioning, balancing and ongoing service and filter changes.
Topvex SX technical specifications
| Recommended floor area | 500–8000 m³/h |
|---|---|
| Heat exchanger type | Rotary heat exchanger (rotor) |
| Control | Systemair NaviPad / Modbus / BACnet |
Who is Systemair Topvex SX for?
Well suited for properties with 500–8000 m³/h of living space.
- Large office building (1500–5000 m²)
- School or kindergarten
- Apartment building (50+ apartments)
- Large shop or spa